import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report'


Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users},
        { path: '/rights', component: Rights},
        { path: '/roles', component: Roles},
        { path: '/categories', component: Cate},
        { path: '/params', component: Params},
        { path: '/orders', component: Order},
        { path: '/reports', component: Report},
      ]
    }
  ]
})

//挂载一路由导航守卫
router.beforeEach((to,from,next) => {
  //to 要访问的的路径
  //from 来自那个路径
  //next 是一个函数，表示放行
  //next（） 表示放行      next（‘/login’） 强制跳转
  if(to.path==='/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next();

})

export default router
